Difference between revisions of "83Plus:BCALLs:42FD"
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'''BCALL Address:''' 42FD | '''BCALL Address:''' 42FD | ||
| − | Checks if | + | Checks if a given amount of RAM is available. This routine will also attempt to free RAM that is taken by temporary variables that have been marked dirty but not yet deleted. |
=== Inputs === | === Inputs === | ||
| Line 21: | Line 21: | ||
== Example == | == Example == | ||
| − | <nowiki>B_CALL EnoughMem</nowiki> | + | <nowiki>ld hl,9 |
| + | B_CALL EnoughMem | ||
| + | jr c,NotEnoughMem</nowiki> | ||
Latest revision as of 13:28, 21 July 2007
Synopsis
Official Name: EnoughMem
BCALL Address: 42FD
Checks if a given amount of RAM is available. This routine will also attempt to free RAM that is taken by temporary variables that have been marked dirty but not yet deleted.
Inputs
- HL = amount of RAM to check for being available
Outputs
- DE = amount of RAM to check for being available
- Carry set if there is insufficient RAM available
Destroys
- All
Remarks
No error is generated.
Example
ld hl,9 B_CALL EnoughMem jr c,NotEnoughMem
